Registering custom event types

[kshegunov]

Hello,
Is it safe to register custom event types before main()? I have the code in a .so, so I'm doing this in the header:

class QMpiEvent : public QEvent
{
	Q_GADGET

public:
	QMpiEvent(Type, QtMpi::NodeId);

	static const Type NodeStarting;
	static const Type NodeExiting;
};

And then I register the events in the .cpp:

const QEvent::Type QMpiEvent::NodeStarting = static_cast<QEvent::Type>(QEvent::registerEventType());
const QEvent::Type QMpiEvent::NodeExiting = static_cast<QEvent::Type>(QEvent::registerEventType());

Am I supposed to do the registration after the QCoreApplication has been initialized?

Kind regards.

[SGaist]

Hi,

Looking at the implementation of registerEventType, it seems you can call it before instantiating the QCoreApplication.

[kshegunov]

@SGaist
Right, I peaked at it as well, but was unsure whether I might have missed something. :)

[SGaist]

Doesn't seem so :) Or we both missed it :D

[kshegunov]

@SGaist
When I finish up my code the obvious run and if it crashes test will tell for sure.
Unfortunately, the documentation is very cryptic of such issues ... :)